Buying a diecast dozer or motor grader is a little like choosing the real machine: you need the right tool for the landscape. In this case, the landscape might be a shelf, a desk, or an HO train layout, and the tool is a scale-model Cat machine. The models in this roundup cover two motor-grader scales and one dozer, with prices spread widely, so before you commit, think about which machine type you actually want, how much room you have, and whether you're after a showpiece or a model with working features.
Quick Take
If you want the most feature-packed motor grader in this set, start with the CAT 14 High Line Series. If you want the smallest and least expensive motor grader here, the Diecast Masters 12M3 is the compact pick. The Cat D6 LGP VPAT is your dozer choice, and it stands apart for that reason. The Ertl Cat 12G is a limited-edition grader from a different maker.
Listed-Price Comparison
The table below shows each model's listed price and a visual sense of where it falls within the range.
| Model | Listed price | Price bar |
|---|---|---|
| CAT 14 Motor Grader High Line Series | USD 119.99 | |
| Cat D6 LGP VPAT Dozer - Damaged | USD 44.95 | |
| Diecast Masters 12M3 Motor Grader 1/87 | USD 39.99 | |
| Ertl Cat 12G Motor Grader | USD 85.00 |
Decision Matrix
Here's a quick way to match the models to common collector goals.
| Use case | Recommended product | Why |
|---|---|---|
| New 1:50 grader with many working features | CAT 14 Motor Grader High Line Series | Listed as new with a metal storage tin and a detailed cab. |
| Grader for HO train layouts | Diecast Masters 12M3 Motor Grader | 1:87 scale fits HO scenes and includes a movable moldboard and rear ripper. |
| 1:50 dozer | Cat D6 LGP VPAT Dozer | Only dozer here; used condition and missing parts noted. |
| New 1:50 grader from Ertl | Cat 12G Motor Grader | New from Ertl with all wheels moving. |
Product Notes
1:50 SCALE CAT 14 MOTOR GRADER HIGH LINE SERIES DIECAST MASTERS MODEL 85545
This is the fullest-featured motor grader of the group. The listing describes a detailed operator's cab, working steering and articulation, a movable moldboard assembly, and a realistic rear ripper. It comes in a collectible metal storage tin and is listed as new in box. The main trade-offs are size and price: at 8.5 inches long, it needs more shelf room than the 1:87 model, and its listed price is the highest here. For collectors who want a 1:50 grader that feels ready to work, this model leads the lineup.
Cat D6 LGP VPAT Dozer - High Line - Diecast Masters 1:50 Scale #85554 Damaged
This is the only dozer in the group, so if your display is missing a dozer, it's the automatic pick. It belongs to the Diecast Masters High Line series, wears the familiar Cat Yellow finish, and is listed as used. The catch is spelled out in the title and description: the roof and exhaust pipe(s) are missing, and there are paint chips. That makes it a better choice for a custom project, parts donor, or a display where the flaws won't be front-and-center. The listed price is lower than the two new 1:50 graders, which can make the flaws easier to accept.
Diecast Masters 85520 Caterpillar 12M3 Motor Grader 1/87 Scale Model
The smallest and least expensive model here, this 1:87 grader trades scale presence for footprint. It still packs a lot of detail: a cab interior with operator, movable drawbar, circle, and moldboard, an articulated front axle, oscillating tandem rear wheels, and an operating rear ripper. The size makes it a natural fit for HO-scale train layouts and tight shelves. The limitation is that at 1:87, the visual impact from across a room won't match the 1:50 models. If you collect around railroad themes or want to keep the upfront cost down without losing working features, this is the strong choice.
Caterpillar Cat 12G Motor Grader - Ertl 1:50 Scale Diecast Model All Wheels Move
Ertl's 12G is a new, limited-edition 1:50 grader, and its main calling card is right in the title: all wheels move. That makes it a nice roll-around piece for a desk or shelf, with the familiar Cat Yellow finish and a design based on the original 12G model. The trade-off is shelf footprint: at 1:50 it takes up about as much room as the CAT 14 High Line, so plan your space. It isn't the lowest-priced option in this set, but it gives you a second 1:50 grader path if you prefer Ertl's approach to the classic Cat grader.
Final Recommendation by Use Case
If you want a motor grader with the richest feature set, choose the CAT 14 High Line Series from Diecast Masters.
If you need a grader for a tight shelf or train-themed display, choose the Diecast Masters 12M3.
If you're shopping for a dozer, the Cat D6 LGP VPAT is the one to weigh.
If you like the idea of a rolling diecast from Ertl, the Cat 12G fits that slot.
